2. Contents
What Is LogMeIn Hamachi²?...........................................................................................................3
Who Should Use LogMeIn Hamachi²?.........................................................................................................................3
The LogMeIn Hamachi² Client.........................................................................................................4
About the Relationship Between the Client and Your LogMeIn Account......................................................................4
About the Hamachi Virtual IP Address.......................................................................................................................5
LogMeIn Hamachi² Network Types.................................................................................................6
About Mesh Networks...............................................................................................................................................6
About Hub-and-Spoke Networks...............................................................................................................................6
About Gateway Networks...........................................................................................................................................7
Managing LogMeIn Hamachi² Clients and Networks.......................................................................8
LogMeIn Hamachi² Security............................................................................................................9
LogMeIn Hamachi² and Firewalls...............................................................................................................................9
Installing LogMeIn Hamachi².........................................................................................................10
System Requirements...............................................................................................................................................10
How to Install the Client to a Local Computer............................................................................................................10
How to Deploy the Client to a Remote Computer.......................................................................................................10
How to Install the Client in Client-Only mode ...........................................................................................................11
How to Update the Hamachi² Client ..........................................................................................................................11
Making the Transition to Hamachi²...........................................................................................................................11
Managing LogMeIn Hamachi² Networks........................................................................................13
How to Add a Hamachi² Network..............................................................................................................................13
How to Add a Hamachi² Network from the Client......................................................................................................14
How to Approve or Reject Join Requests...................................................................................................................14
How to Delete a Network..........................................................................................................................................14
How to Leave a Network...........................................................................................................................................14
LogMeIn Hamachi² Glossary..........................................................................................................15
ii LogMeIn Hamachi² – Getting Started
4. The LogMeIn Hamachi² Client
The term Hamachi² client refers to both the Hamachi² software itself and any computer with Hamachi² client software
installed. With proper permission from network owners, Hamachi² clients can become members of any Hamachi²
network.
Figure 1: The LogMeIn Hamachi² client
About the Relationship Between the Client and Your LogMeIn Account
The Hamachi² client can be used in Client-only (unattached) mode as a stand-alone service with no relation to a
LogMeIn account, or in web management mode as an attached member of a LogMeIn account.
Client-only mode: Unattached
The term Unattached client refers to any Hamachi² client that has not been added to a LogMeIn account and is
being used in Client-only mode. Unattached clients cannot be managed on the web using the My Networks page
or LogMeIn Central. It can still join existing networks and create mesh networks.
Web management mode: Attached
The term Attached client refers to any Hamachi² client that has been added to a LogMeIn account. Any LogMeIn
account holder can manage attached clients on the web using the My Networks page, while LogMeIn Central
subscribers can use LogMeIn Central.
4 LogMeIn Hamachi² – Getting Started
6. LogMeIn Hamachi² Network Types
LogMeIn Hamachi² provides three network types for flexibility in meeting diverse use case scenarios. They differ
mainly in network topology.
Hamachi² clients can be members of any network; however, there is a limit of 16 members per network for a
non-commercial license, or 256 per network owned by a commercial license holder or LogMeIn Central subscriber.
About Mesh Networks
In a mesh network, every member is connected to every other member.
Organizations without a physical LAN can use the mesh network type to set up a virtual corporate LAN.
Mesh is also the typical choice for gamers, because network games constantly have to broadcast their current
status to all other participants in the game.
Figure 2: Mesh network
Note: Mesh is the only network type that can be created directly from the Hamachi client interface.
About Hub-and-Spoke Networks
In a hub-and-spoke network, one or more computers act as hubs, while other clients connect as spokes. Spokes
connect to hubs, but never to each other.
Hub-and-spoke is typically used when a workstation (spoke) needs to connect only to servers (hubs). For example,
in a library, the catalog is a hub while workstations accessing the catalog are spokes. Hub-and-spoke is ideal if
you want strict control over connections between network members.
Figure 3: Hub-and-spoke network
Important: If you set every member of a hub-and-spoke network to be a hub, you essentially turn the
network into a mesh network. Similarly, if you set only spokes, your members will be unable to make a
connection.
6 LogMeIn Hamachi² – Getting Started
8. Managing LogMeIn Hamachi² Clients and Networks
Hamachi² Web Management Features
Any Hamachi² user with a LogMeIn account can manage attached clients and networks using the LogMeIn web
site (My Networks page).
• Create mesh, hub-and-spoke, and gateway networks
• Manage the default settings to be applied to a new client
• Remotely manage client settings
• Manage the default settings to be applied to a new network
• Edit or delete existing networks
• Install the Hamachi² client to the local computer
• Deploy the Hamachi² client to a remote computer
• Manage requests to join Hamachi² networks
Hamachi² Client Management Features
Hamachi clients provide access to the following features:
• Create mesh networks
• Manage the default settings to be applied to a new network
• Edit or delete existing networks
• Install the Hamachi² client to the local computer
• Deploy the Hamachi² client to a remote computer
• Manage requests to join Hamachi² networks
Commercial versus Non-Commercial Use
Hamachi² is free for non-commercial use and allows up to 16 computers per network.
The commercial version offers fast relays, allows up to 256 computers per network, and is subject to an annual
subscription fee.
8 LogMeIn Hamachi² – Getting Started
10. Installing LogMeIn Hamachi²
System Requirements
Hamachi² client
• Operating System: Windows XP, Windows 2000, Windows 2003, Windows Vista, Windows 2008, Windows 7
• Internet connection
• There are no special hardware requirements
How to Install the Client to a Local Computer
Follow this procedure to download and install the Hamachi² client to a local computer. The client will be attached
to your LogMeIn account.
Important: You must be logged in to the LogMeIn account to which you want to attach the new Hamachi²
client.
1. On the LogMeIn web site, switch to Network mode and click Add Client.
The Add Client page is displayed.
2. Select Install LogMeIn Hamachi² on this computer and click Continue.
3. Click Install LogMeIn Hamachi².
The Hamachi² installer is launched.
4. Follow the on-screen instructions.
The client is installed on the local computer as an attached member of the active LogMeIn account. You will be
able to manage this client using the LogMeIn website.
How to Deploy the Client to a Remote Computer
Follow this procedure to send an installation link that the recipient can use to download and install the Hamachi²
client. The client will be attached to your LogMeIn account.
Important: You must be logged in to the LogMeIn account to which you want to attach the new Hamachi²
client.
All defaults set under Configuration > Client Defaults will be applied to the new client(s).
1. On the LogMeIn web site, switch to Network mode and click the Deployment link.
2. Click Add New Link.
The Deploy LogMeIn Hamachi² to remote computer(s) (Step 1 of 2) page is displayed.
3. Type a Description that you can use to recognize your installation link.
10 LogMeIn Hamachi² – Getting Started
12. This assumes that you were a Hamachi user without a LogMeIn account.
1. Create a LogMeIn account.
a) Go to www.LogMeIn.com and click Create an account.
b) Select the LogMeIn Access, Management and Networking product group.
c) Click Continue and follow all on-screen instructions.
2. While logged in to your account, install Hamachi² on the computer running "old" Hamachi. See How to Install
the Client to a Local Computer on page 10.
3. When prompted to attach the client to your LogMeIn Account, be sure to select Attach networks and click Attach.
You will now be able to manage your Hamachi² clients and networks on the web.
12 LogMeIn Hamachi² – Getting Started
14. How to Add a Hamachi² Network from the Client
This procedure must be executed on the client.
1. Click Network > Create a new network.
2. Type the network ID and password of the network.
3. Click Create.
How to Approve or Reject Join Requests
If you receive a request from another client to join your network, you can approve or reject that request.
1. On the web interface, you will see the following message when you have requests from clients waiting to join
your account or networks:
You have x pending join requests.
2. Click the pending join request link.
The Join Requests page is displayed.
3. Choose Accept or Reject, as appropriate.
4. Click Save.
How to Delete a Network
1. On the LogMeIn web site, switch to Network mode and click My Networks.
The My Networks page is displayed.
2. On the My Networks page, click Edit next to the network you want to work with.
The Edit Network page is displayed.
3. Select the Delete tab.
4. Click the Delete button.
The network is permanently deleted. All client installations and client-to-account relationships are left intact.
How to Leave a Network
This procedure must be executed on the client.
1. On the client, right-click on the network that you want to leave.
2. Click Leave network.
Important: You cannot transfer the ownership of a network; therefore, you cannot leave a network that you
created. You can only delete such networks as described in How to Delete a Network on page 14.
14 LogMeIn Hamachi² – Getting Started
16. Mesh network
In a mesh network, every member is connected to every other member.
NAT
Network Address Translation
Peer
A computer that is a member of a computer network.
Peer Label
The Peer Label is used to define your online presence to other Hamachi² users. This is what other users see as your
identification when you are in a Hamachi² network.
Unattached client
The term Unattached client refers to any Hamachi² client that has not been added to a LogMeIn account and is being used
in Client-only mode. Unattached clients cannot be managed on the web using the My Networks page or LogMeIn Central.
It can still join existing networks and create mesh networks.
Unattached network
The term Unattached network refers to any Hamachi² network that was created on an unattached client. Unattached
networks can only be mesh networks and they cannot be managed on the web using the My Networks page or LogMeIn
Central.
VPN
Virtual Private Network
16 LogMeIn Hamachi² – Getting Started
17. Index
A J
attached client 4 join requests 14
C N
client network
deployment 10 add 13, 14
delete 14
leave 14
F network types
firewall 9 gateway 7
hub-and-spoke 6
mesh 6
H
Hamachi² features 8 S
Hamachi² update 11
security 9
system requirements 10
I
installation 10, 11 U
unattached client 4
upgrade 12